Replacement Filter

Replacement for the original antimicrobial-protected filter that ships with your Windmill AC unit. Reusable and easily cleaned by rinsing under the sink.


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Clean Air Subscription

Activated Carbon Filters


Pack of four. Fits directly into your included filter and protects against smoke, allergens, odors, fumes, and more. Switch them out every three months for best results.


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Add some breeze


Step 1 - Window type

We need to make sure your window can hold an AC unit safely. It must be a double hung window (it should slide up and down) and be in good condition. Does this describe your window?
Step 1 of 3

Step 2 - Window Size

Great! Let’s figure out window size. The Windmill AC is designed to fit windows with a width of 23-37 inches and a vertical opening of at least 14 inches. Sounds accurate?
Step 2 of 3

Step 3 - Space Size

OK, what's the approximate size of your space? Best guess is fine!
(100-250 Square ft.)
(250-350 Square ft.)
(350+ Square ft.)
Step 3 of 3

And here's the Windmill for you! We wish you many breezy days.